blocks|key|2634042|text|也许，|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2634043|\'([\w-]%2B(?:\s[\w-]%2B)*)\'|code-block|syntax|javascript|2634044|2634045|编辑|offset|length|style|BOLD|2634046|如果不允许使用前导/尾随破折号(在单词边界上)，则应为：|2634047|/\'(\w%2B(?:[\s-]\w%2B)*)\'/|2634048|entityMap^0|0|0|0|0|2|0|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|U|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|V|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|W|8|@$J|X|K|Y|L|M]]|9|@]|A|$]]|$1|N|3|O|5|6|7|Z|8|@]|9|@]|A|$]]|$1|P|3|Q|5|D|7|10|8|@]|9|@]|A|$E|F]]|$1|R|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|S|$]]

Perhaps,

<pre><code>\'([\w-]+(?:\s[\w-]+)*)\'
</code></pre>

?

EDIT

If leading/trailing dashes (on the word boundaries) are not allowed, this should read:

<pre><code>/\'(\w+(?:[\s-]\w+)*)\'/
</code></pre>

blocks|key|2717970|text|这样的表达式应该可以做到这一点：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2717971|'[\w-]%2B(?:\s[\w-]%2B)*'|code-block|syntax|javascript|2717972|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

An expression like this should do it:

<pre><code>'[\w-]+(?:\s[\w-]+)*'
</code></pre>

blocks|key|996006|text|试试这个：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|996007|my+$data+=+"'KENEDY+JOHN+G+JR+E'++++++++++++++++++'example'+++++++++++++++++'D-54'";

#+Sets+of
#+++++one+or+more+word+characters+or+dash
#+++++followed+by+an+optional+space
#+enclosed+in+single+quotes
#
#+The+outermost+()s+are+optional.+There+just
#+so+i+can+print+the+match+easily+as+$1.
while+($data+=~+/(\'([\w-]%2B\s?)%2B\')/g)
{
++++print+$1,+"\n";
}|code-block|syntax|javascript|996008|输出|996009|'KENEDY+JOHN+G+JR+E'
'example'
'D-54'|996010|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Try this:

<pre><code>my $data = "'KENEDY JOHN G JR E' 'example' 'D-54'";

# Sets of
# one or more word characters or dash
# followed by an optional space
# enclosed in single quotes
#
# The outermost ()s are optional. There just
# so i can print the match easily as $1.
while ($data =~ /(\'([\w-]+\s?)+\')/g)
{
 print $1, "\n";
}
</code></pre>

outputs

<pre><code>'KENEDY JOHN G JR E'
'example'
'D-54'
</code></pre>

blocks|key|1550247|text|不确定这是否适用于您，因为您特别要求使用正则表达式。但是，如果您希望字符串由两个或多个空格或短划线分隔，则可以使用split|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1550248|use+strict;
use+warnings;
use+v5.10;

my+$str+=+q('KENEDY+JOHN+G+JR+E'+++++++++++++++'example'++++++++++++++'D-54');
my+@match+=+split+/\s{2,}/,+$str;
say+for+@match;|code-block|syntax|javascript|1550249|具有类似功能的正则表达式将为|1550250|my+@match+=+$str+=~+/(.*?)(?:\s{2,}%7C$)/g;|1550251|请注意，您将需要查找行尾$的边缘情况。|1550252|使用split或通配符.的好处是，您可以依靠空格来定义字段，而不是字段本身的内容。|1550253|entityMap|0|LINK|mutability|MUTABLE|url|http://perldoc.perl.org/functions/split.html^0|1L|5|1L|5|0|0|0|0|0|C|1|0|2|5|B|1|0^^$0|@$1|2|3|4|5|6|7|10|8|@$9|11|A|12|B|C]]|D|@$9|13|A|14|1|15]]|E|$]]|$1|F|3|G|5|H|7|16|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|17|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|18|8|@]|D|@]|E|$I|J]]|$1|O|3|P|5|6|7|19|8|@$9|1A|A|1B|B|C]]|D|@]|E|$]]|$1|Q|3|R|5|6|7|1C|8|@$9|1D|A|1E|B|C]|$9|1F|A|1G|B|C]]|D|@]|E|$]]|$1|S|3|-4|5|6|7|1H|8|@]|D|@]|E|$]]]|T|$U|$5|V|W|X|E|$Y|Z]]]]

Not sure if this applies to you, since you asked for a regex specifically. However, if you want strings separated by two or more whitespace or dashes, you can use <a href="http://perldoc.perl.org/functions/split.html" rel="nofollow"><code>split</code></a>

<pre><code>use strict;
use warnings;
use v5.10;

my $str = q('KENEDY JOHN G JR E' 'example' 'D-54');
my @match = split /\s{2,}/, $str;
say for @match;
</code></pre>

A regex with similar functionality would be

<pre><code>my @match = $str =~ /(.*?)(?:\s{2,}|$)/g;
</code></pre>

Note that you'll need the edge case of finding end of line <code>$</code>.

The benefit of using <code>split</code> or the wildcard <code>.</code> is that you rely on whitespace to define your fields, not the content of the fields themselves.

blocks|key|996082|text|您的代码实际上是按原样工作的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|996083|use+feature+qw(+say+);
$_+=+"'KENEDY+JOHN+G+JR+E'+++++++++'example'+++++++++'D-54'";
say+for+/\'([\s\w-]%2B)\'/g;|code-block|syntax|javascript|996084|输出：|996085|KENEDY+JOHN+G+JR+E
example
D-54|996086|(如果您还想要引号，请移动括号。)|996087|我会简单地使用|996088|my+@data+=+/'([%5E']*)'/g;|996089|如果您有任何验证要做，请在以后进行。|996090|entityMap^0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|W|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|Y|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|Z|8|@]|9|@]|A|$]]|$1|O|3|P|5|D|7|10|8|@]|9|@]|A|$E|F]]|$1|Q|3|R|5|6|7|11|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|12|8|@]|9|@]|A|$]]]|T|$]]

Your code actually works as is.

<pre><code>use feature qw( say );
$_ = "'KENEDY JOHN G JR E' 'example' 'D-54'";
say for /\'([\s\w-]+)\'/g;
</code></pre>

output:

<pre><code>KENEDY JOHN G JR E
example
D-54
</code></pre>

(Move the parens if you want the quotes too.)

I would simply use

<pre><code>my @data = /'([^']*)'/g;
</code></pre>

If you have any validation to do, do it afterwards.

I need a rather complicated regular expression that will select words with one space between them and that can include the '-' symbol in them, it should not however select continuous whitespace.

<pre><code>'KENEDY JOHN G JR E' 'example' 'D-54'
</code></pre>

I have tried the following regular expression: 

<pre><code>\'([\s\w-]+)\'
</code></pre>

but it selects continuous whitespace which I don't want it to do.

I want the expression to select 

<pre><code>'KENEDY JOHN G JR E'
'example'
'D-54'
</code></pre>

Regular expression for selecting single spaced phrases but not whitespace

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我需要一个相当复杂的正则表达式，它将选择它们之间有一个空格的单词，并且可以在它们中包括'-‘符号，但它不应该选择连续的空格。'KENEDY JOHN G JR E'                  'example'                 'D-54'我尝试了以下正则表达式：\'([\s\w-]+)\'但是它选择了连续的空格，这是我不希望它做的。我想要选择表达式'KENEDY JOHN

问用于选择单个空格短语而不是空格的正则表达式
EN

回答 5

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问用于选择单个空格短语而不是空格的正则表达式
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